python - 在 python 中将字符串附加到 .txt 文件的每一行？

Question

我想在我的文件中的每一行附加一些文本

这是我的代码

filepath = 'hole.txt'
with open(filepath) as fp:
    line = fp.readline()
    cnt = 1
    while line:
        #..........
        #want to append text "#" in every line by reading line by line 
        text from .txt file
        line = fp.readline()
        cnt += 1

Answer 1

您可以阅读这些行并将它们放入列表中。然后您以写入模式打开同一个文件，并在每一行中写入您要追加的字符串。

filepath = "hole.txt"
with open(filepath) as fp:
    lines = fp.read().splitlines()
with open(filepath, "w") as fp:
    for line in lines:
        print(line + "#", file=fp)